A boy and a girl are sitting on the porch.
"I'm a boy," says the child with black hair.
"I'm a girl," says the child with red hair.
If at least one of them is lying, who is which?

Can you find out which triangle will have a bigger area among the following?
1. A triangle with sides 300, 400 and 500
2. A triangle with sides 300, 400 and 700

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

Twenty frogs are sitting on a log floating on the surface of a river. Two of them decide to jump off into the water.

How many frogs are there on the log at this moment?

Forwards I am heavy, backward I am not. What am I?

Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

What Adam and Eve do not have but the rest of the people have?

People are waiting in line to board a 100-seat aeroplane. Steve is the first person in the line. He gets on the plane but suddenly can't remember what his seat number is, so he picks a seat at random. After that, each person who gets on the plane sits in their assigned seat if it's available, otherwise, they will choose an open seat at random to sit in. The flight is full and you are last in line. What is the probability that you get to sit in your assigned seat?

By moving just one matchstick, you need to make the below statement true. Can you do it?